Whats the difference between a Xbow shooting 300fps and one thats shooting 375fps? I know the difference with the compound bow ,you can shoot farther with your first sight pin lets say a compound shooting 360fps can shoot out to 40yards with 1 pin.This way your not grabing a range finder to see if he is 20,30,or40 yards.Does the Xbow work the same way?Does a Xbow shooting 375fps shoot the same as one shooting 300fps? If a deer is at 20yards one at30 and one at 40yards are you going to have to use 3 different crosshairs or dots? Does the faster Xbow use different sight in than the slower ones,maybe first dot from 10yards to 30yards? Or do you set them all at 20,30,and40yards.Thinking about changing over to Xbow from a compound and need a little information.